Size optimization for high frequency quartz resonator using finite element vibration analysis

Author

Ji, Jing ; Oigawa, Hiroshi ; Chen, Hsin Hui ; Zhao, Meng ; Ueda, Toshitsugu

Author_Institution

Grad. Sch. of Inf., Production & Syst., Waseda Univ., Kitakyushu, Japan

fYear

2011

fDate

28-31 Oct. 2011

Firstpage

1652

Lastpage

1655

Abstract

In this study, size optimization for a high frequency AT-cut quartz resonator using finite element vibration analysis is presented. The objective resonator is a high frequency fundamental resonator with one-sided electrodes structure, which has high Q value and low resistance compared to the widely used overtone resonators. The one-sided electrodes structure was designed to obtain effective energy trapping and suppress inharmonic overtone (IO) mode. A convenient 2-D model using rectangular element was established to well reconcile calculation time with accuracy. A frequency mode chart describing the relationship between vibration coupling and size of quart plate was achieved. Vibration coupling and energy trapping effect were examined for different sizes of electrodes. COMSOL MULTIPHYSICS™ was adopted as a FEM analysis tool and the simulation results confirmed the effectiveness of this work.

Keywords

crystal resonators; electrodes; finite element analysis; optimisation; vibrations; COMSOL MULTIPHYSICS; FEM analysis tool; IO mode suppression; energy trapping effect; finite element vibration analysis; frequency mode chart; high frequency AT-cut quartz resonator; inharmonic overtone mode suppression; one-sided electrode structure; overtone resonator; quart plate; rectangular element; size optimization; vibration coupling; Charge carrier processes; Couplings; Electrodes; Finite element methods; Optimization; Resonant frequency; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2011 IEEE

Conference_Location

Limerick

ISSN

1930-0395

Print_ISBN

978-1-4244-9290-9

Type

conf

DOI

10.1109/ICSENS.2011.6126974

Filename

6126974